Codeforces 1362C. Johnny and Another Rating Drop Solution

_builtin_popcount(x): This function is used to count the number of one’s(set bits) in an integer.

1. Example:

   if x = 4
   binary value of 4 is 100
   Output: No of ones is 1

2. Solution in C++:
   ///**********ALLAH IS ALMIGHTY************///
   ///AH Tonmoy
   ///Department of CSE,23rd batch
   ///Islamic University,Bangladesh
   

3. #include<bits/stdc++.h>
4. using namespace std;
5. int main()
6. {
7. long long n,t;
8. cin>>t;
9. while(t--)
10. {
11. cin>>n;
12. cout<<2*n-__builtin_popcountll(n)<<endl;
13. }
14. }